08' LMM CC/SB
After programming with EFI Live I noticed the Service 4WD message displaying on the IC.
I haven't been into the Trans but did put a TCM tune to cure the so called lazy shifting in the 6 speeds. I can go back to a stock tune if needed. To me that says I can communicate with the TCM and wouldn't be the TCCM module BUT could this have caused a issue with the TCCM module?
I've heard there is a fuse located under the hood that could possibly be a issue too?
I haven't done any troubleshooting on it as I'm out of town on work right now. Any suggestions where to start looking when I get back to my truck?
After programming with EFI Live I noticed the Service 4WD message displaying on the IC.
I haven't been into the Trans but did put a TCM tune to cure the so called lazy shifting in the 6 speeds. I can go back to a stock tune if needed. To me that says I can communicate with the TCM and wouldn't be the TCCM module BUT could this have caused a issue with the TCCM module?
I've heard there is a fuse located under the hood that could possibly be a issue too?
I haven't done any troubleshooting on it as I'm out of town on work right now. Any suggestions where to start looking when I get back to my truck?